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abitype

Strict TypeScript types for Ethereum ABIs

  • 0.9.0-canary.20230612T181322
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  • npm
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Version published
Weekly downloads
856K
increased by9.46%
Maintainers
2
Weekly downloads
 
Created

What is abitype?

The abitype npm package is designed to provide TypeScript types for Ethereum ABI (Application Binary Interface) definitions. It helps developers to work with Ethereum smart contracts in a type-safe manner, ensuring that the interactions with the contracts are correctly typed and reducing the risk of runtime errors.

What are abitype's main functionalities?

Define ABI Types

This feature allows you to define the ABI of a smart contract in a type-safe manner. The `Abi` type ensures that the structure of the ABI is correct and helps catch errors at compile time.

import { Abi } from 'abitype';

const myAbi: Abi = [
  {
    "constant": true,
    "inputs": [],
    "name": "myFunction",
    "outputs": [
      {
        "name": "",
        "type": "uint256"
      }
    ],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
  }
];

Type-safe Contract Interactions

This feature allows you to interact with smart contract functions in a type-safe manner. By defining the ABI and using the `AbiFunction` type, you can ensure that the interactions with the contract are correctly typed.

import { Abi, AbiFunction } from 'abitype';

const myAbi: Abi = [
  {
    "constant": true,
    "inputs": [],
    "name": "myFunction",
    "outputs": [
      {
        "name": "",
        "type": "uint256"
      }
    ],
    "payable": false,
    "stateMutability": "view",
    "type": "function"
  }
];

const myFunction: AbiFunction = myAbi[0];

// Now you can interact with the function in a type-safe way
const result: number = await myContract.methods.myFunction().call();

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Package last updated on 12 Jun 2023

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